/* Copyright (c) 2007 Paul Bakaus (paul.bakaus@googlemail.com) and Brandon Aaron (brandon.aaron@gmail.com || http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 * Download by http://www.mb5u.com
 * $LastChangedDate: 2007-12-20 08:46:55 -0600 (Thu, 20 Dec 2007) $
 * $Rev: 4259 $
 *
 * Version: 1.2
 *
 * Requires: jQuery 1.2+
 */
(function($){
	$.dimensions = {version: '1.2'};
	/*Create innerHeight, innerWidth, outerHeight and outerWidth methods*/
	$.each( [ 'Height', 'Width' ], function(i, name){
		/*innerHeight and innerWidth*/
		$.fn[ 'inner' + name ] = function() {
			if (!this[0]) return;
			var torl = name == 'Height' ? 'Top'    : 'Left',  /*top or left*/
		    borr = name == 'Height' ? 'Bottom' : 'Right'; /*bottom or right*/
			return this.is(':visible') ? this[0]['client' + name] : num( this, name.toLowerCase() ) + num(this, 'padding' + torl) + num(this, 'padding' + borr);
		};
		
		/*outerHeight and outerWidth*/
		$.fn[ 'outer' + name ] = function(options) {
			if (!this[0]) return;
			var torl = name == 'Height' ? 'Top'    : 'Left',  /*top or left*/
		    borr = name == 'Height' ? 'Bottom' : 'Right'; /*bottom or right*/
			options = $.extend({ margin: false }, options || {});
			var val = this.is(':visible') ? 
				this[0]['offset' + name] : num(this, name.toLowerCase())
				+ num(this, 'border' + torl + 'Width') + num(this, 'border' + borr + 'Width')
				+ num(this, 'padding' + torl) + num(this, 'padding' + borr);
			return val + (options.margin ? (num(this, 'margin' + torl) + num(this, 'margin' + borr)) : 0);
		};
	});
	
	/*Create scrollLeft and scrollTop methods*/
	$.each( ['Left', 'Top'], function(i, name) {
		$.fn[ 'scroll' + name ] = function(val) {
			if (!this[0]) return;
			return val != undefined ?
			/*Set the scroll offset*/
			this.each(function() {
				this == window || this == document ? window.scrollTo( 
					name == 'Left' ? val : $(window)[ 'scrollLeft' ](),
					name == 'Top'  ? val : $(window)[ 'scrollTop'  ]()
					) : this[ 'scroll' + name ] = val;
				}) :
				/*Return the scroll offset*/ 
				this[0] == window || this[0] == document ? self[ (
					name == 'Left' ? 'pageXOffset' : 'pageYOffset') ] ||
					$.boxModel && document.documentElement[ 'scroll' + name ] ||
					document.body[ 'scroll' + name ] :
				this[0][ 'scroll' + name ];
			};
	});
	$.fn.extend({
		position: function() {
			var left = 0, top = 0, elem = this[0], offset, parentOffset, offsetParent, results;
			if (elem) {
				/*Get *real* offsetParent*/
				offsetParent = this.offsetParent();
				/*Get correct offsets*/
				offset       = this.offset();
				parentOffset = offsetParent.offset();
				/*Subtract element margins*/ 
				offset.top  -= num(elem, 'marginTop');
				offset.left -= num(elem, 'marginLeft');
				/*Add offsetParent borders*/ 
				parentOffset.top  += num(offsetParent, 'borderTopWidth');
				parentOffset.left += num(offsetParent, 'borderLeftWidth');
				/*Subtract the two offsets*/ 
				results = {
					top:  offset.top  - parentOffset.top,
					left: offset.left - parentOffset.left
				};
			}
			return results;
		},
		offsetParent: function() {
			var offsetParent = this[0].offsetParent;
			while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && $.css(offsetParent, 'position') == 'static'))
			offsetParent = offsetParent.offsetParent;
			return $(offsetParent);
		}
	});
	function num(el, prop) {
		return parseInt($.curCSS(el.jquery?el[0]:el,prop,true))||0;
	};
})(jQuery);